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In this photo taken Jan. 25, 2013, a dachshund named Maggie is treated in a hyperbaric chamber for an infection and paw wound at the University of Florida's College of Veterinary Medicine, in Gainesville, Fla. Vets at the university here have used the chamber on dogs, cats, ferrets, rabbits and one monkey. UF veterinarian and professor Justin Shmalberg said the chamber is used to treat animals who have been bitten by rattlesnakes, hit by cars and who have infected wounds. (AP Photo/Tamara Lush)

In this photo taken Jan. 25, 2013, a dachshund named Maggie is treated in a hyperbaric chamber for an infection and paw wound at the University of Florida's College of Veterinary Medicine, in Gainesville, Fla. Vets at the university here have used the chamber on dogs, cats, ferrets, rabbits and one monkey. UF veterinarian and professor Justin Shmalberg said the chamber is used to treat animals who have been bitten by rattlesnakes, hit by cars and who have infected wounds. (AP Photo/Tamara Lush)